mdwx: block memfd_create

Some profiles may need adjusting if app uses memfd_create(2) and
memory-deny-write-execute was enabled.

1 files changed, 16 insertions, 0 deletions

diff --git a/test/filters/memwrexe.c b/test/filters/memwrexe.c
index b43b232d1..12787f3a5 100644
--- a/test/filters/memwrexe.c
+++ b/test/filters/memwrexe.c
@@ -6,12 +6,14 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <sys/mman.h>
+#include <sys/syscall.h>
 
 static void usage(void) {
         printf("memwrexe options\n");
         printf("where options is:\n");
         printf("\tmmap - mmap test\n");
         printf("\tmprotect - mprotect test\n");
+        printf("\tmemfd_create - memfd_create test\n");
 }
 
 int main(int argc, char **argv) {
@@ -72,4 +74,18 @@ int main(int argc, char **argv) {
 
                 return 0;
         }
+
+        else if (strcmp(argv[1], "memfd_create") == 0) {
+                int fd = syscall(SYS_memfd_create, "memfd_create", 0);
+                if (fd == -1) {
+                        fprintf(stderr, "TESTING ERROR: cannot run memfd_create test\n");
+                        return 1;
+                }
+                printf("memfd_create successful\n");
+
+                // wait for expect to timeout
+                sleep(100);
+
+                return 0;
+        }
 }